8" toms use an 8-ply construction, while 10"-18" toms add one more vertical ply of maple to make the 9-ply construction.
Bass Drums use a 10-ply construction and Snare drums are 12-ply, both adding extra plys of maple.
For those interested in color stains and lacquers, we swap the outer 2 plys, putting maple on the outside as it is a much better canvas for transparent color than mahogany.
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